CN104240978B - A kind of automatic transfer switch for triple power supplies device - Google Patents
A kind of automatic transfer switch for triple power supplies device Download PDFInfo
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- CN104240978B CN104240978B CN201410515126.2A CN201410515126A CN104240978B CN 104240978 B CN104240978 B CN 104240978B CN 201410515126 A CN201410515126 A CN 201410515126A CN 104240978 B CN104240978 B CN 104240978B
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Abstract
The invention discloses a kind of automatic transfer switch for triple power supplies device, including three groups of breakers of break-make three-way power respectively, drive the execution unit of breaker break-make and the control unit of control execution unit work, execution unit includes motor, the decelerator with motor connection, and the plectrum rotating disk of circuit breaker handle is connected and stirred with decelerator；Control unit includes angular displacement sensor, and angular displacement sensor detects the angular displacement of plectrum rotating disk；Control unit also includes controller, the electric voltage frequency Acquisition Circuit for detecting three-way power electric voltage frequency, receives the signal from angular displacement sensor and the Angular Displacement Detecting circuit and motor-drive circuit that are handled, controller receives the signal from electric voltage frequency Acquisition Circuit and Angular Displacement Detecting circuit, motor-drive circuit is outputed signal to, motor-drive circuit outputs signal to motor to control plectrum rotating disk to operate.The present invention can detect and judge three-way power situation in real time, it is possible to achieve the automatic switchover of power supply.
Description
Technical field
The present invention relates to a kind of automatic transfer switching equipment, more particularly to a kind of automatic transfer switch for triple power supplies device.
Background technology
At present, with the rapid development of the national economy, power supply reliability requirement of more and more industries to power system is got over
Come higher.In this case, start applied to the power automatic transfer switch device for solving the requirement of electric power system continued power
Gradually popularize.The application of double power supply automatic transfer switch is more universal under existing technical conditions, but for hospital, airport and electricity
Use requirement can not be typically reached when news department etc. is using dual power supply.Requirement needs continuously powered are adopted in order to meet it
With three-way power come that is, using main power source, the first stand-by power supply, the second stand-by power supply.
The technical scheme for being commonly used to the automatic transfer switching equipment of three-way power is turned automatically using two-stage dual power supply
Switching device, i.e. first order dual-power automatic switching device input are changed for main power source and the first stand-by power supply, the double electricity in the second level
The input of source automatic transfer equipment is made up of the output end and the second stand-by power supply of first order dual-power automatic switching device, the
The output end connection load of two grades of dual-power automatic switching devices, three-way power is realized by two-stage dual-power automatic switching device
Automatic conversion control.The implementation of this three power automatic transfer switch has to be increased using equipment, electrical circuit is complicated,
Use cost and maintenance cost are higher, security is poor, the shortcomings of be not easy to safeguard.
The content of the invention
The present invention provides a kind of automatic transfer switch for triple power supplies dress to solve technical problem present in known technology
Put.
The present invention is adopted the technical scheme that to solve technical problem present in known technology：A kind of three-way power is certainly
Dynamic transfer switch unit, including three groups of breakers of break-make three-way power, the execution unit of three groups of breaker break-makes of driving respectively
And the control unit for controlling the execution unit to work, decelerator of the execution unit including motor, with motor connection, and
The plectrum rotating disk of the circuit breaker handle is connected and stirred with the decelerator；Described control unit includes angular displacement sensor, institute
State the angular displacement that angular displacement sensor detects the plectrum rotating disk；Described control unit also includes controller, detection three-way power
Voltage and the voltage and frequency collection circuit of frequency, the angle position for receiving the signal from the angular displacement sensor and being handled
Detection circuit and motor-drive circuit are moved, the controller is received from the voltage and frequency collection circuit and angle position
The signal of detection circuit is moved, the motor-drive circuit is outputed signal to, the motor-drive circuit outputs signal to the electricity
Machine controls the plectrum rotating disk to operate, so as to control automatic transfer switch for triple power supplies device to realize that the automatic of power supply cuts
Change.
Further, the controller includes single-chip microcomputer or PLC.
Further, voltage and the frequency collection circuit includes setting CCP moulds in linear optical coupling transformer, the controller
Block, the CCP modules are connected with the voltage and frequency collection circuit, and the linear optical coupling transformer input comes from the control
The reference voltage signal of device, out-put supply supplies the CCP modules.
Further, the controller includes A/D converter, and the Angular Displacement Detecting circuit includes reducing transformer, the drop
Depressor includes current-limiting resistance and photoelectrical coupler with temperature-compensating, and the reducing transformer input is from institute's displacement sensors letter
Number, the A/D converter is outputed signal to by the photoelectrical coupler.
Further, in addition to power circuit, the power circuit supplies described control unit working power, the power supply
Circuit includes electromagnetic interface filter, and Capacitor apart is used between the input end grounding pole and output head grounding pole of the power circuit.
Further, described control unit also includes display, the controller output signal to the display.
Further, described control unit also includes button, and the button includes automatic power switching key and manually electricity
Source switching key, the key-press input signal to the controller.
Further, the decelerator is double output shaft worm type of reduction gearing.
Further, an output shaft of the double output shaft worm type of reduction gearing is connected with the plectrum rotating disk, separately
One output shaft is connected with the angular displacement sensor.
The present invention has the advantages and positive effects of：Automatic transfer switch for triple power supplies device uses a set of drive mechanism
Complete the handover operation of three-way power；Automatic transfer switch for triple power supplies device is using the controller such as single-chip microcomputer or PLC as control core
The heart, can be achieved manually and automatically two kinds of mode of operations, and realize that man-machine interaction is grasped by displays such as button and liquid crystal displays
Make；Voltage and frequency collection circuit can detect the voltage and frequency of three-way power in real time, and controller passes through the interior comparator set
Deng comparison circuit, voltage and frequency will be detected and compared with reference signal, if supply voltage and frequency occur abnormal, three tunnels
Power automatic transfer switch device can realize the automatic switchover of power supply；This automatic transfer switch for triple power supplies device is relative to existing
There is two-stage dual power automatic transfer switching equipment, it is high and easy to maintain etc. excellent with simple in construction, low manufacture cost, reliability
Point.
Brief description of the drawings
Fig. 1 is structural representation of the invention；
Fig. 2 is control unit structural representation of the invention；
Fig. 3 is plectrum turntable structure schematic diagram of the invention；
Fig. 4 is plectrum turntable structure front view of the invention；
Fig. 5 is the plectrum component of the present invention and the attachment structure schematic diagram of circuit breaker handle；
Fig. 6 is voltage and frequency collection circuit theory diagrams of the invention；
Fig. 7 is angular displacement Acquisition Circuit schematic diagram of the invention；
Fig. 8 is motor-drive circuit schematic diagram of the invention；
Fig. 9 is power circuit principle figure of the invention；
Figure 10 is sequence of switches flow chart of the invention；
Figure 11 is turned position three circuit breaker handle separating brakes of correspondence of the unidirectional plectrum of the present invention and the location drawing closed a floodgate.
In figure：1. control box；2-1,2-2,2-3. breaker；3. installation frame；4. plectrum rotating disk；5. motor, 6. slow down
Device, 7. angular displacement sensors, 8. output shaft sleeves, 9. top rotary tables, 10. lower rotary tables, 11. major axis set pad, 12. unidirectional plectrums,
13. back-moving spring, 14. gag lever posts, 15. switch plectrums, 16. are oriented to rotor, 17. driving spring axle beds, 18. driving springs, 19.
Driving spring baffle plate, 20. circuit breaker handles.
Embodiment
In order to further understand the content, features and effects of the present invention, hereby enumerating following examples, and coordinate accompanying drawing
Describe in detail as follows：
Refer to Fig. 1, Fig. 2 and Fig. 3, a kind of automatic transfer switch for triple power supplies device, including break-make three-way power respectively
Three groups of breakers 2, the execution unit of three groups of breaker break-makes 2 of driving and the control unit for controlling the execution unit to work,
Said modules can be arranged on installation frame 3, and the primary circuit elements of control unit are arranged in control box 1, described to perform list
Decelerator 6 of the member including motor 5, with motor connection, and be connected with the decelerator 6 and stir the plectrum of the circuit breaker handle
Rotating disk 4；Described control unit includes angular displacement sensor 7, and the angular displacement sensor 7 detects the angle position of the plectrum rotating disk 4
Move；Described control unit also includes controller, the voltage and frequency collection circuit of detection three-way power and electric voltage frequency, receives and
From the signal of the angular displacement sensor 7 and the Angular Displacement Detecting circuit and motor-drive circuit that are handled, the control
Device receives the signal from the voltage and frequency collection circuit and the Angular Displacement Detecting circuit, outputs signal to the motor
Drive circuit, the motor-drive circuit outputs signal to the motor 5 to control the plectrum rotating disk 4 to operate.Voltage and frequency
Rate Acquisition Circuit can detect the voltage and frequency of three-way power in real time, by external voltage and frequency comparator circuit or
Respective comparator circuit set in controller etc., will detect voltage and frequency is compared with reference signal, and controller is according to comparing
As a result, output signal, if supply voltage and frequency occur abnormal, controller output signal outputs signal to the electricity
Drive circuit, the motor-drive circuit outputs signal to the motor 5 to control the plectrum rotating disk 4 to operate.
Wherein described controller may include that single-chip microcomputer or PLC etc. have the component of microprocessor, micro- by what is set in it
Processor, carries out the setting of complicated process, accurate controlling switch switching node.
Further, voltage and the frequency collection circuit may include linear optical coupling transformer, and the controller interior can be set
CCP modules, the CCP modules are connected with the voltage and frequency collection circuit, and the linear optical coupling transformer input comes from institute
The reference voltage signal of controller is stated, out-put supply supplies the CCP modules.Wherein CCP modules are that realization catches/compared/arteries and veins
The English abbreviation of three kinds of functional modules of width modulated is rushed, it there are three kinds of mode of operations, wherein, trap mode is to single-chip microcomputer pin
The state of upper input signal, when the change of signal meets the condition of setting, will produce interruption, while recording determining for the moment
When device value.Cycle, frequency and dutycycle of periodic square wave signal of pin input etc. can be measured using the characteristic, can also be surveyed
Measure the parameters such as pulse width, pulse due in or the pulse disappearance moment of the non-periodic signals of pin input；Its comparison mould
Formula refers to a numerical value set in advance be compared when TMR1 timers are running and counted, if equal, will produce interruption,
And perform specific task.Rectangular pulse, negative pulse, the delay and running letter of different in width can be exported from pin using the characteristic
Number, the control signal of thyristor operating angle and driving stepper motor signal etc., also referred to as comparison pattern is output comparison pattern；Its arteries and veins
Rush width modulated mode and refer to that the pulse width exported on the pin is the signal pulse that can be adjusted.Can be real using the characteristic
The rotating speed control of existing direct current generator and the VFC of stepper motor etc..Pulse period and dust cycle are by internal timing
Device compares generation, therefore is also required to use timer.The capture function of this module is used in the design, capturing input signal
Rising edge or trailing edge, when occurring saltus step, record clock signal is got off.
Further, the controller may include A/D converter, and the Angular Displacement Detecting circuit may include reducing transformer, institute
Stating reducing transformer may include current-limiting resistance and photoelectrical coupler with temperature-compensating, and the reducing transformer input comes from the displacement sensing
Device signal, the A/D converter is outputed signal to by the photoelectrical coupler.
Further, power circuit is may also include, the power circuit can be supplied to described control unit working power, described
Power circuit may include noise filter, between the input end grounding pole and output head grounding pole of the power circuit with electric capacity every
From, i.e., described power circuit input AC side joint between the output ground connection of the digital circuit such as supply single-chip microcomputer with electric capacity every
From.Electromagnetic interface filter is also known as EMI FILTER, and its effect is suppression electromagnetic interference, and it is design suppression electromagnetic interference key
Noise filtering.The noise that can be effectively suppressed in power network using noise filtering enters circuit, the noise that also circuit capable of inhibiting is produced
Pollute power network.Noise has two classes, and a class is common-mode noise, and a class is differential mode noise.Common-mode noise is resulted between phase line and ground,
Differential mode noise is resulted between phase line.At present using it is more be common mode inductance and capacitance series type, as shown in Figure 6.L1
In inductance 1-2 and electric capacity C1 constitute low pass filter, common-mode signal on circuit can be made to control on compared with low level, it is suppressed that
Outside electromagnetic interference signal enters circuit.L1 is common mode inductance, is called common mode choke.Common mode inductance is really one two-way
Wave filter：On the one hand electromagnetic interference on circuit is filtered out, another side, which has, will control itself outwards not launch electromagnetic interference.Common mode inductance
Two coils be reversely wound on same iron core, the number of turn and phase are all identical.So, when the sinusoidal current in circuit flows through altogether
During mould inductance, electric current produces opposing magnetic field in the inductance coil of same-phase coiling and cancelled out each other, now normal line current
Mainly influenceed, when there is common mode current flowing through coil, due to the same tropism of common mode current, can be produced in coil by coil resistance
Life increases coil induction reactance with the magnetic field of phase, coil is shown as high impedance, heavy damping, thus attenuation common-mode electric current, reaches filter
Ripple purpose.
Further, described control unit may also include the displays such as liquid crystal display, and the controller output signal is extremely
The display.
Described control unit may also include button, and the button may include automatic power switching key and manual power switching
Button, the key-press input signal to the controller.
Further, the decelerator 6 can be double output shaft worm type of reduction gearing.The double output shaft worm and gear subtracts
One output shaft of fast device can be connected with the plectrum rotating disk, and another output shaft can be connected with the angular displacement sensor.
The controllers such as above-mentioned single-chip microcomputer, power circuit, voltage and frequency collection circuit, angular displacement Acquisition Circuit, motor drive
Dynamic circuit etc. can be arranged in control box 1, and LCDs, button etc. can be arranged on the upper lid of control box 1, angle displacement transducer
Device 7 can be arranged on the output shaft of decelerator 6.
A concrete structure embodiment of the above-mentioned plectrum rotating disk 4 shown in Fig. 3 and Fig. 4 is referred to, plectrum rotating disk 4 includes defeated
Go out shaft sleeve 8, major axis set pad 11, upper combination dials and sub-combinations rotating disk, wherein upper combination dials and sub-combinations
Rotating disk is equipped with top rotary table 9, lower rotary table 10, unidirectional plectrum 12 etc., the input shaft and motor of double output shaft worm type of reduction gearing 6
5 output shaft connection, one end of the output shaft of double output shaft worm type of reduction gearing 6 is connected with angular displacement sensor 7, dual output
The other end of the output shaft of axle worm type of reduction gearing 6 is fixedly connected with output shaft sleeve 8 by holding screw, and top rotary table 9 is with
Rotating disk 10 partners combination dials, and two pairs of rotating disks above and below upper combination dials and sub-combinations rotating disk, output shaft sleeve 8 passes through
Screw is fixedly connected with two pairs of combination dials up and down, and major axis sleeve gasket is then mounted between upper combination dials and sub-combinations rotating disk
Short sleeve pad is also placed between the lower rotary table 10 in top rotary table 9 and sub-combinations rotating disk in piece 11, sub-combinations rotating disk
21, upper combination dials are fixed on the top rotary table 9 on output shaft sleeve 8 in every a pair of combination dials with sub-combinations rotating disk
With on lower rotary table 10 close to output shaft sleeve 8 place it is relative be provided with screw hole and screw be installed, unidirectional plectrum 12 by with
The screw, which is hinged, to be positioned between top rotary table 9 and lower rotary table 10, unidirectional plectrum 12 and sub-combinations in upper combination dials
The in the vertical direction of unidirectional plectrum 12 in rotating disk is in 90 degree of interlaced arrangements, and lower rotary table 10 is fixed on output centrally through screw
On shaft sleeve 8, the unidirectional upper end of plectrum 12 is provided with screw hole, and unidirectional plectrum 12 is hinged by the screw hole with lower rotary table 10, the use
In rotary shaft of the screw being hinged as unidirectional plectrum 12.On unidirectional plectrum 12 installation is provided with close to one end of the screw
Hole, one end of back-moving spring 13 is connected with the mounting hole on unidirectional plectrum 12, the other end of back-moving spring 13 and top rotary table 9 and under
Rotating disk 10 is fixedly connected by screw.
One concrete structure embodiment of plectrum component shown in Figure 5, plectrum component by switch plectrum 15, two
Rotor 16, driving spring axle bed 17, driving spring 18, driving spring baffle plate 19 is oriented to constitute.There is arc switch plectrum 15 front end
Breach, the outline of arc notch and unidirectional plectrum 12 is tangent, and two guiding rotors 16 are hinged on switch by rivet respectively and dialled
On two mounting holes that the medium position of piece 15 is provided with, driving spring axle bed 17 is opened by rivet with switch plectrum 15 on front end
Some rivet holes are hinged, and driving spring 18 is placed between driving spring axle bed 17 and driving spring baffle plate 19, circuit breaker handle
Between 20 two guiding rotors 16 of placement.The switch rear end of plectrum 15 is hinged by screw with lower installation board 4, switch plectrum 15 front end
Between the top rotary table 9 and lower rotary table 10 of each pair rotating disk of rotating disk drive component, driving spring baffle plate 19 is by rivet with
Installing plate 4 is hinged.
Voltage shown in Figure 6 and a concrete structure embodiment of frequency collection circuit, voltage and frequency collection
The effect of circuit is：For the ease of measuring the voltage and frequency of power supply, it is necessary to which ac signal is converted into the knowledge of monolithic function
Other voltage signal and frequency signal, and catching by the CCP modules built in the A/D ports of the controllers such as single-chip microcomputer and controller
Catch voltage acquisition and frequency detecting that function realizes power supply.Decompression member is used as using linear optical coupling in voltage and frequency collection circuit
Part, substitutes the effect of the transformer or transformer in existing reduction technology, with small volume, compact conformation, isolation circuit etc.
Advantage.Programmable voltage reference is used in the circuit, by digitizing adjusting parameter, the simulation with conventional potentiometer has been abandoned
Method of adjustment, improves the stability and reliability of circuit.
One concrete structure embodiment of angular displacement Acquisition Circuit shown in Figure 7, the work of angular displacement Acquisition Circuit
With being：For the ease of detecting the angle of executing agency, it is necessary to the voltage signal of angular displacement sensor be gathered, by this voltage signal
The A/D ports of single-chip microcomputer are input to by decompression, and then realize that single-chip microcomputer detects the angle displacement of drive mechanism in real time.The circuit
Using the precision resistance with temperature-compensating as current limiting element, and electrical isolation is realized by optic coupling element.
One concrete structure embodiment of motor-drive circuit shown in Figure 8, motor-drive circuit is acted on
In：The controller output signals such as single-chip microcomputer are to motor-drive circuit, by motor-drive circuit come the rotating forward of controlled motor and instead
Turn, and then drive plectrum rotating disk to realize the break-make of breaker, so as to complete the automatic conversion and manual switch function of power supply.
One concrete structure embodiment of power circuit shown in Figure 9, the effect of power circuit is：In order to carry
For direct current supply, alternating current is converted to by 5V direct currents by rectifier bridge, transformation, filtering etc..The circuit is using HF switch electricity
Source is depressured, and EMI is filtered by common-mode voltage, is isolated between simulating ground digitally with smaller capacitive, anti-tampering, inside is additionally used
The higher a reference source of stability, improves the reliability and stability of system, with cost is low, volume with other power supplies compared with
Small, efficiency high, stronger electromagnetic compatibility, it is adaptable to which the control section of three power automatic transfer switch of the invention powers.
Figure 10 is sequence of switches flow chart of the invention, and its sequence flow is as follows：
Start → there is button to press→ be, keystroke handling subprogram → return main program；It is no, voltage detecting and show →
It is no, frequency detecting and show → main power source is normal→ be, on main power source→ it is to return to main program；It is no, in the first standby electricity
On source → it is that main power source → return main program is switched to by the first stand-by power supply；It is no, on the second stand-by power supply→ be, by
Two stand-by power supplies switch to main power source → return main program；It is no, there are three cuttings to shift to main power source → return main program；It is no, first
Stand-by power supply is normal→ be, on the first power supply→ it is to return to main program；It is no, on main power source → it is to be switched by main power source
To the first stand-by power supply → return main program；It is no, on the second stand-by power supply→ it is to switch to first by the second stand-by power supply
Power supply → return main program；It is no, there are three cuttings to shift to the first stand-by power supply → return main program；No, the second stand-by power supply is normal
→ be, on the second stand-by power supply→ it is to return to main program；It is no, on main power source → it is that it is standby to switch to second by main power source
With power supply → return main program；It is no, on the first stand-by power supply→ it is that the second stand-by power supply is switched to by the first stand-by power supply
→ return to main program；It is no, shift to the second stand-by power supply → return main program by three cuttings；
The operation principle of the present invention：
Breaker 2-1 and breaker 2-2 horizontal symmetricals are placed, and breaker 2-2 and breaker 2-3 vertical symmetries are placed, and three
The circuit breaker handle 20 of individual breaker is in contact with the switch plectrum 15 of diverse location respectively, refers to Fig. 1 and Fig. 5.
The separating brake of circuit breaker handle 20 and combined floodgate of turned position three groups of breakers of correspondence of unidirectional plectrum 12 shown in Figure 11
The position of position, i.e., the unidirectional control breaker of plectrum 12 2-1, breaker 2-2 and breaker 2-3 separating brakes and combined floodgate.Circumference in figure
A point positions and A ' the point positions of circumference breaker 2-1 separating brake and the position of combined floodgate are controlled for correspondence and unidirectional plectrum 12；Circle
The position that the B point positions in week and B ' the point position correspondences of circumference control breaker 2-2 separating brake and closed a floodgate with unidirectional plectrum 12；Circle
The position that the C point positions in week and C ' the point position correspondences of circumference control breaker 2-3 separating brake and closed a floodgate with unidirectional plectrum 12；Circle
The D points position in week controls the position of three breakers disjunction simultaneously for correspondence with unidirectional plectrum 12.More specifically it is described as follows：
Breaker closing operation principle, illustrates by taking breaker 2-1 processes of closing a floodgate as an example, when motor 5 passes through double output shaft snail
When the driving rotating disk drive component of worm and gear decelerator 6 is rotated counterclockwise, rotating disk drive component is from the optional position of a circumference
Start to rotate counterclockwise, unidirectional plectrum 12 is contacted with switch plectrum 15, the breaker of the breaker 2 between switch plectrum 15
Handle 20 is in gate-dividing state, and switch plectrum 15 can not be rotated clockwise, and unidirectional plectrum is using the screw that is hinged as rotary shaft up time
Pin is rotated, and when unidirectional plectrum 12 is separated with switch plectrum 15, unidirectional plectrum 12 turns counterclockwise in the presence of back-moving spring 13
Move and contacted with gag lever post 14；Now rotating disk drive component is done into the ad-hoc location that rotates counterclockwise in above-mentioned circumference and is set to A points
Position and A ' points position, when motor driving rotating disk drive component rotates counterclockwise to A point positions, motor 5, which changes, to be rotated backward,
Motor 5 is rotated clockwise by the driving rotating disk drive component of double output shaft worm type of reduction gearing 6；Rotating disk drive component is from A
Point position is rotated clockwise, and unidirectional plectrum 12 is contacted in the presence of back-moving spring 13 with gag lever post 14, and gag lever post 14 limits list
To rotating counterclockwise for plectrum 12, unidirectional plectrum 12 is contacted with switch plectrum 15, the unidirectional inverse time of 12 driving switch plectrum of plectrum 15
Pin is rotated, and the circuit breaker handle 20 for the guiding rotor 16 driving breaker 2-1 being hinged on switch plectrum 15 is rotated counterclockwise；Work as electricity
When the driving rotating disk drive component of machine 5 turns to A ' point positions, angular displacement sensor 7 obtains positional information, and motor 5 stops, open circuit
Device 2-1 closes a floodgate, and double output shaft worm type of reduction gearing 6 has auto-lock function, when motor 5 stops operating, and switch plectrum 15 is not
It can be rotated clockwise in the presence of driving spring 18, and breaker 2-2 and breaker 2-3 is in gate-dividing state.
Breaker disjunction operation principle, then illustrated by taking breaking circuit breaker 2-1 circuit breaker handle 20 as an example：Work as motor
When 5 driving rotating disk drive components are rotated clockwise, rotating disk drive component is rotated clockwise from A ' points position, the unidirectional up time of plectrum 12
Pin is rotated and separated with switch plectrum 15, and switch plectrum 15 is rotated clockwise in the presence of driving spring 18；To breaker
When 2-1 circuit breaker handle 20 is in disjunction, switch plectrum 15 is in extreme position, and switch plectrum 15 stops operating, breaker
2-1 disjunctions.When the driving rotating disk drive component of motor 5 is rotated clockwise to the D point positions of above-mentioned circumference, angular displacement sensor 7
Positional information is obtained, motor 5 stops operating, and breaker 2-1, breaker 2-2 and breaker 2-3 divide all in gate-dividing state
Disconnected three-way power.
Above-mentioned rotating counterclockwise and rotate clockwise is rotation direction seen from above.
Claims (8)
1. a kind of automatic transfer switch for triple power supplies device, including three groups of breakers of break-make three-way power, three groups of driving respectively
The execution unit of breaker break-make and control the execution unit work control unit, the execution unit include motor, with
The decelerator of motor connection, and the plectrum rotating disk of the circuit breaker handle is connected and stirred with the decelerator；The control is single
Member includes angular displacement sensor, and the angular displacement sensor detects the angular displacement of the plectrum rotating disk；It is characterized in that, the control
Unit processed also includes controller, the voltage and frequency collection circuit of detection three-way power voltage and frequency, received from the angle
The signal of displacement transducer and the Angular Displacement Detecting circuit and motor-drive circuit handled, the controller are received and come from
The signal of voltage and the frequency collection circuit and the Angular Displacement Detecting circuit, outputs signal to the motor-drive circuit,
The motor-drive circuit outputs signal to the motor to control the plectrum rotating disk to operate；Voltage and the frequency collection electricity
Road includes setting CCP modules in linear optical coupling transformer, the controller, the CCP modules and the voltage and frequency collection electricity
Road is connected, and the linear optical coupling transformer inputs the reference voltage signal from the controller, and out-put supply supplies the CCP
Module.
2. automatic transfer switch for triple power supplies device according to claim 1, it is characterised in that the controller includes single
Piece machine or PLC.
3. automatic transfer switch for triple power supplies device according to claim 1, it is characterised in that the controller includes A/
D converters, the Angular Displacement Detecting circuit includes reducing transformer, and the reducing transformer includes current-limiting resistance and photoelectricity with temperature-compensating
Coupler, the reducing transformer inputs the signal from the angular displacement sensor, is outputed signal to by the photoelectrical coupler
The A/D converter.
4. automatic transfer switch for triple power supplies device according to claim 1, it is characterised in that also including power circuit,
The power circuit supplies described control unit working power, and the power circuit includes electromagnetic interface filter, the power circuit
Capacitor apart is used between input end grounding pole and output head grounding pole.
5. automatic transfer switch for triple power supplies device according to claim 1, it is characterised in that described control unit is also wrapped
Include display, the controller output signal to the display.
6. automatic transfer switch for triple power supplies device according to claim 1, it is characterised in that described control unit is also wrapped
Include button, the button includes automatic power switching key and manual power switching key, the key-press input signal is to described
Controller.
7. automatic transfer switch for triple power supplies device according to claim 1, it is characterised in that the decelerator is lose-lose
Shaft worm type of reduction gearing.
8. automatic transfer switch for triple power supplies device according to claim 7, it is characterised in that the double output shaft worm gear
One output shaft of worm reducer is connected with the plectrum rotating disk, and another output shaft is connected with the angular displacement sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410515126.2A CN104240978B (en) | 2014-09-29 | 2014-09-29 | A kind of automatic transfer switch for triple power supplies device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410515126.2A CN104240978B (en) | 2014-09-29 | 2014-09-29 | A kind of automatic transfer switch for triple power supplies device |
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| Publication Number | Publication Date |
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| CN104240978A CN104240978A (en) | 2014-12-24 |
| CN104240978B true CN104240978B (en) | 2017-08-04 |
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| CN201410515126.2A Active CN104240978B (en) | 2014-09-29 | 2014-09-29 | A kind of automatic transfer switch for triple power supplies device |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104716736B (en) * | 2015-04-04 | 2017-01-18 | 佛山科学技术学院 | Control circuit of double-power-supply changeover device |
| CN112038189B (en) * | 2020-08-19 | 2022-02-18 | 苏州飞腾电器有限公司 | Three-power-supply automatic change-over switch |
| CN114613620A (en) * | 2022-03-16 | 2022-06-10 | 河海大学 | Remote action control device of switch cabinet breaker based on radio frequency communication |
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| JP3343609B2 (en) * | 1999-10-18 | 2002-11-11 | ドコモエンジニアリング北海道株式会社 | Automatic breaker recovery device |
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| CN203434738U (en) * | 2013-07-25 | 2014-02-12 | 天津北方恒业电气技术有限公司 | Three power supply automatic changeover switch controller |
| CN104008931A (en) * | 2014-06-04 | 2014-08-27 | 河北工业大学 | Driving operation mechanism with three-power-supply automatic change-over switch |
| CN204088090U (en) * | 2014-09-29 | 2015-01-07 | 河北工业大学 | A kind of automatic transfer switch for triple power supplies device |
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